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View Compilation Error

0_0_37233754_31607\Main.java:2: 错误: 非法字符: '#'
#include <cstdio>
^
0_0_37233754_31607\Main.java:2: 错误: 需要class, interface或enum
#include <cstdio>
         ^
0_0_37233754_31607\Main.java:3: 错误: 非法字符: '#'
#include <cmath>
^
0_0_37233754_31607\Main.java:6: 错误: 需要class, interface或enum
int main()
^
0_0_37233754_31607\Main.java:9: 错误: 需要class, interface或enum
	scanf("%d", &t);
	^
0_0_37233754_31607\Main.java:10: 错误: 需要class, interface或enum
	for(int i=0; i<t; ++i)
	^
0_0_37233754_31607\Main.java:10: 错误: 需要class, interface或enum
	for(int i=0; i<t; ++i)
	             ^
0_0_37233754_31607\Main.java:10: 错误: 需要class, interface或enum
	for(int i=0; i<t; ++i)
	                  ^
0_0_37233754_31607\Main.java:13: 错误: 需要class, interface或enum
		double sum = 0;
		^
0_0_37233754_31607\Main.java:14: 错误: 需要class, interface或enum
		for(int j=1; j<=n; ++j)
		^
0_0_37233754_31607\Main.java:14: 错误: 需要class, interface或enum
		for(int j=1; j<=n; ++j)
		             ^
0_0_37233754_31607\Main.java:14: 错误: 需要class, interface或enum
		for(int j=1; j<=n; ++j)
		                   ^
0_0_37233754_31607\Main.java:16: 错误: 需要class, interface或enum
		sum = sum + 1;
		^
0_0_37233754_31607\Main.java:17: 错误: 需要class, interface或enum
		printf("%d\n", (int)sum);
		^
0_0_37233754_31607\Main.java:18: 错误: 需要class, interface或enum
	}
	^
0_0_37233754_31607\Main.java:21: 错误: 需要class, interface或enum
}
^
16 个错误


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